Base support for ball chair



FIG. 1 is a perspective view of base support for ball chair showing mynew design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left end view thereof;

FIG. 5 is a right end view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a perspective view showing my new design arranged with a ballchair;

FIG. 9 is a bottom perspective view thereof; and,

FIG. 10 is a bottom perspective cross sectional view along the A-A linein FIG. 6 .

The broken lines depict environment that forms no part of the claimeddesign.

CLAIM The ornamental design for a base support for ball chair, as shownand described.